cve-2024-26931
Vulnerability from cvelistv5
Published
2024-05-01 05:17
Modified
2024-12-19 08:50
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix command flush on cable pull System crash due to command failed to flush back to SCSI layer. BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 PGD 0 P4D 0 Oops: 0000 [#1] SMP NOPTI CPU: 27 PID: 793455 Comm: kworker/u130:6 Kdump: loaded Tainted: G OE --------- - - 4.18.0-372.9.1.el8.x86_64 #1 Hardware name: HPE ProLiant DL360 Gen10/ProLiant DL360 Gen10, BIOS U32 09/03/2021 Workqueue: nvme-wq nvme_fc_connect_ctrl_work [nvme_fc] RIP: 0010:__wake_up_common+0x4c/0x190 Code: 24 10 4d 85 c9 74 0a 41 f6 01 04 0f 85 9d 00 00 00 48 8b 43 08 48 83 c3 08 4c 8d 48 e8 49 8d 41 18 48 39 c3 0f 84 f0 00 00 00 <49> 8b 41 18 89 54 24 08 31 ed 4c 8d 70 e8 45 8b 29 41 f6 c5 04 75 RSP: 0018:ffff95f3e0cb7cd0 EFLAGS: 00010086 RAX: 0000000000000000 RBX: ffff8b08d3b26328 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff8b08d3b26320 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffffffffffe8 R10: 0000000000000000 R11: ffff95f3e0cb7a60 R12: ffff95f3e0cb7d20 R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8b2fdf6c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000002f1e410002 CR4: 00000000007706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: __wake_up_common_lock+0x7c/0xc0 qla_nvme_ls_req+0x355/0x4c0 [qla2xxx] qla2xxx [0000:12:00.1]-f084:3: qlt_free_session_done: se_sess 0000000000000000 / sess ffff8ae1407ca000 from port 21:32:00:02:ac:07:ee:b8 loop_id 0x02 s_id 01:02:00 logout 1 keep 0 els_logo 0 ? __nvme_fc_send_ls_req+0x260/0x380 [nvme_fc] qla2xxx [0000:12:00.1]-207d:3: FCPort 21:32:00:02:ac:07:ee:b8 state transitioned from ONLINE to LOST - portid=010200. ? nvme_fc_send_ls_req.constprop.42+0x1a/0x45 [nvme_fc] qla2xxx [0000:12:00.1]-2109:3: qla2x00_schedule_rport_del 21320002ac07eeb8. rport ffff8ae598122000 roles 1 ? nvme_fc_connect_ctrl_work.cold.63+0x1e3/0xa7d [nvme_fc] qla2xxx [0000:12:00.1]-f084:3: qlt_free_session_done: se_sess 0000000000000000 / sess ffff8ae14801e000 from port 21:32:01:02:ad:f7:ee:b8 loop_id 0x04 s_id 01:02:01 logout 1 keep 0 els_logo 0 ? __switch_to+0x10c/0x450 ? process_one_work+0x1a7/0x360 qla2xxx [0000:12:00.1]-207d:3: FCPort 21:32:01:02:ad:f7:ee:b8 state transitioned from ONLINE to LOST - portid=010201. ? worker_thread+0x1ce/0x390 ? create_worker+0x1a0/0x1a0 qla2xxx [0000:12:00.1]-2109:3: qla2x00_schedule_rport_del 21320102adf7eeb8. rport ffff8ae3b2312800 roles 70 ? kthread+0x10a/0x120 qla2xxx [0000:12:00.1]-2112:3: qla_nvme_unregister_remote_port: unregister remoteport on ffff8ae14801e000 21320102adf7eeb8 ? set_kthread_struct+0x40/0x40 qla2xxx [0000:12:00.1]-2110:3: remoteport_delete of ffff8ae14801e000 21320102adf7eeb8 completed. ? ret_from_fork+0x1f/0x40 qla2xxx [0000:12:00.1]-f086:3: qlt_free_session_done: waiting for sess ffff8ae14801e000 logout The system was under memory stress where driver was not able to allocate an SRB to carry out error recovery of cable pull. The failure to flush causes upper layer to start modifying scsi_cmnd. When the system frees up some memory, the subsequent cable pull trigger another command flush. At this point the driver access a null pointer when attempting to DMA unmap the SGL. Add a check to make sure commands are flush back on session tear down to prevent the null pointer access.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/09c0ac18cac206ed1218b1fe6c1a0918e5ea9211
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/67b2d35853c2da25a8ca1c4190a5e96d3083c2ac
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8de1584ec4fe0ebea33c273036e7e0a05e65c81d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8f0d32004e3a572bb77e6c11c2797c87f8c9703d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a27d4d0e7de305def8a5098a614053be208d1aa1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a859f6a8f4234b8ef62862bf7a92f1af5f8cd47a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b73377124f56d2fec154737c2f8d2e839c237d5a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d7a68eee87b05d4e29419e6f151aef99314970a9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ec7587eef003cab15a13446d67c3adb88146a150
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/09c0ac18cac206ed1218b1fe6c1a0918e5ea9211
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/67b2d35853c2da25a8ca1c4190a5e96d3083c2ac
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8de1584ec4fe0ebea33c273036e7e0a05e65c81d
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8f0d32004e3a572bb77e6c11c2797c87f8c9703d
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a27d4d0e7de305def8a5098a614053be208d1aa1
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a859f6a8f4234b8ef62862bf7a92f1af5f8cd47a
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b73377124f56d2fec154737c2f8d2e839c237d5a
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d7a68eee87b05d4e29419e6f151aef99314970a9
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ec7587eef003cab15a13446d67c3adb88146a150
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Impacted products
Vendor Product Version
Linux Linux
Show details on NVD website

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Fix command flush on cable pull\n\nSystem crash due to command failed to flush back to SCSI layer.\n\n BUG: unable to handle kernel NULL pointer dereference at 0000000000000000\n PGD 0 P4D 0\n Oops: 0000 [#1] SMP NOPTI\n CPU: 27 PID: 793455 Comm: kworker/u130:6 Kdump: loaded Tainted: G           OE    --------- -  - 4.18.0-372.9.1.el8.x86_64 #1\n Hardware name: HPE ProLiant DL360 Gen10/ProLiant DL360 Gen10, BIOS U32 09/03/2021\n Workqueue: nvme-wq nvme_fc_connect_ctrl_work [nvme_fc]\n RIP: 0010:__wake_up_common+0x4c/0x190\n Code: 24 10 4d 85 c9 74 0a 41 f6 01 04 0f 85 9d 00 00 00 48 8b 43 08 48 83 c3 08 4c 8d 48 e8 49 8d 41 18 48 39 c3 0f 84 f0 00 00 00 \u003c49\u003e 8b 41 18 89 54 24 08 31 ed 4c 8d 70 e8 45 8b 29 41 f6 c5 04 75\n RSP: 0018:ffff95f3e0cb7cd0 EFLAGS: 00010086\n RAX: 0000000000000000 RBX: ffff8b08d3b26328 RCX: 0000000000000000\n RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff8b08d3b26320\n RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffffffffffe8\n R10: 0000000000000000 R11: ffff95f3e0cb7a60 R12: ffff95f3e0cb7d20\n R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000\n FS:  0000000000000000(0000) GS:ffff8b2fdf6c0000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000000000000 CR3: 0000002f1e410002 CR4: 00000000007706e0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n PKRU: 55555554\n Call Trace:\n  __wake_up_common_lock+0x7c/0xc0\n  qla_nvme_ls_req+0x355/0x4c0 [qla2xxx]\n qla2xxx [0000:12:00.1]-f084:3: qlt_free_session_done: se_sess 0000000000000000 / sess ffff8ae1407ca000 from port 21:32:00:02:ac:07:ee:b8 loop_id 0x02 s_id 01:02:00 logout 1 keep 0 els_logo 0\n ? __nvme_fc_send_ls_req+0x260/0x380 [nvme_fc]\n qla2xxx [0000:12:00.1]-207d:3: FCPort 21:32:00:02:ac:07:ee:b8 state transitioned from ONLINE to LOST - portid=010200.\n  ? nvme_fc_send_ls_req.constprop.42+0x1a/0x45 [nvme_fc]\n qla2xxx [0000:12:00.1]-2109:3: qla2x00_schedule_rport_del 21320002ac07eeb8. rport ffff8ae598122000 roles 1\n ? nvme_fc_connect_ctrl_work.cold.63+0x1e3/0xa7d [nvme_fc]\n qla2xxx [0000:12:00.1]-f084:3: qlt_free_session_done: se_sess 0000000000000000 / sess ffff8ae14801e000 from port 21:32:01:02:ad:f7:ee:b8 loop_id 0x04 s_id 01:02:01 logout 1 keep 0 els_logo 0\n  ? __switch_to+0x10c/0x450\n ? process_one_work+0x1a7/0x360\n qla2xxx [0000:12:00.1]-207d:3: FCPort 21:32:01:02:ad:f7:ee:b8 state transitioned from ONLINE to LOST - portid=010201.\n  ? worker_thread+0x1ce/0x390\n  ? create_worker+0x1a0/0x1a0\n qla2xxx [0000:12:00.1]-2109:3: qla2x00_schedule_rport_del 21320102adf7eeb8. rport ffff8ae3b2312800 roles 70\n  ? kthread+0x10a/0x120\n qla2xxx [0000:12:00.1]-2112:3: qla_nvme_unregister_remote_port: unregister remoteport on ffff8ae14801e000 21320102adf7eeb8\n  ? set_kthread_struct+0x40/0x40\n qla2xxx [0000:12:00.1]-2110:3: remoteport_delete of ffff8ae14801e000 21320102adf7eeb8 completed.\n  ? ret_from_fork+0x1f/0x40\n qla2xxx [0000:12:00.1]-f086:3: qlt_free_session_done: waiting for sess ffff8ae14801e000 logout\n\nThe system was under memory stress where driver was not able to allocate an\nSRB to carry out error recovery of cable pull.  The failure to flush causes\nupper layer to start modifying scsi_cmnd.  When the system frees up some\nmemory, the subsequent cable pull trigger another command flush. At this\npoint the driver access a null pointer when attempting to DMA unmap the\nSGL.\n\nAdd a check to make sure commands are flush back on session tear down to\nprevent the null pointer access."
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      "title": "scsi: qla2xxx: Fix command flush on cable pull",
      "x_generator": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26931",
    "datePublished": "2024-05-01T05:17:14.823Z",
    "dateReserved": "2024-02-19T14:20:24.195Z",
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    "state": "PUBLISHED"
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  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26931\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-01T06:15:07.673\",\"lastModified\":\"2024-11-21T09:03:24.837\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nscsi: qla2xxx: Fix command flush on cable pull\\n\\nSystem crash due to command failed to flush back to SCSI layer.\\n\\n BUG: unable to handle kernel NULL pointer dereference at 0000000000000000\\n PGD 0 P4D 0\\n Oops: 0000 [#1] SMP NOPTI\\n CPU: 27 PID: 793455 Comm: kworker/u130:6 Kdump: loaded Tainted: G           OE    --------- -  - 4.18.0-372.9.1.el8.x86_64 #1\\n Hardware name: HPE ProLiant DL360 Gen10/ProLiant DL360 Gen10, BIOS U32 09/03/2021\\n Workqueue: nvme-wq nvme_fc_connect_ctrl_work [nvme_fc]\\n RIP: 0010:__wake_up_common+0x4c/0x190\\n Code: 24 10 4d 85 c9 74 0a 41 f6 01 04 0f 85 9d 00 00 00 48 8b 43 08 48 83 c3 08 4c 8d 48 e8 49 8d 41 18 48 39 c3 0f 84 f0 00 00 00 \u003c49\u003e 8b 41 18 89 54 24 08 31 ed 4c 8d 70 e8 45 8b 29 41 f6 c5 04 75\\n RSP: 0018:ffff95f3e0cb7cd0 EFLAGS: 00010086\\n RAX: 0000000000000000 RBX: ffff8b08d3b26328 RCX: 0000000000000000\\n RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff8b08d3b26320\\n RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffffffffffe8\\n R10: 0000000000000000 R11: ffff95f3e0cb7a60 R12: ffff95f3e0cb7d20\\n R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000\\n FS:  0000000000000000(0000) GS:ffff8b2fdf6c0000(0000) knlGS:0000000000000000\\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n CR2: 0000000000000000 CR3: 0000002f1e410002 CR4: 00000000007706e0\\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n PKRU: 55555554\\n Call Trace:\\n  __wake_up_common_lock+0x7c/0xc0\\n  qla_nvme_ls_req+0x355/0x4c0 [qla2xxx]\\n qla2xxx [0000:12:00.1]-f084:3: qlt_free_session_done: se_sess 0000000000000000 / sess ffff8ae1407ca000 from port 21:32:00:02:ac:07:ee:b8 loop_id 0x02 s_id 01:02:00 logout 1 keep 0 els_logo 0\\n ? __nvme_fc_send_ls_req+0x260/0x380 [nvme_fc]\\n qla2xxx [0000:12:00.1]-207d:3: FCPort 21:32:00:02:ac:07:ee:b8 state transitioned from ONLINE to LOST - portid=010200.\\n  ? nvme_fc_send_ls_req.constprop.42+0x1a/0x45 [nvme_fc]\\n qla2xxx [0000:12:00.1]-2109:3: qla2x00_schedule_rport_del 21320002ac07eeb8. rport ffff8ae598122000 roles 1\\n ? nvme_fc_connect_ctrl_work.cold.63+0x1e3/0xa7d [nvme_fc]\\n qla2xxx [0000:12:00.1]-f084:3: qlt_free_session_done: se_sess 0000000000000000 / sess ffff8ae14801e000 from port 21:32:01:02:ad:f7:ee:b8 loop_id 0x04 s_id 01:02:01 logout 1 keep 0 els_logo 0\\n  ? __switch_to+0x10c/0x450\\n ? process_one_work+0x1a7/0x360\\n qla2xxx [0000:12:00.1]-207d:3: FCPort 21:32:01:02:ad:f7:ee:b8 state transitioned from ONLINE to LOST - portid=010201.\\n  ? worker_thread+0x1ce/0x390\\n  ? create_worker+0x1a0/0x1a0\\n qla2xxx [0000:12:00.1]-2109:3: qla2x00_schedule_rport_del 21320102adf7eeb8. rport ffff8ae3b2312800 roles 70\\n  ? kthread+0x10a/0x120\\n qla2xxx [0000:12:00.1]-2112:3: qla_nvme_unregister_remote_port: unregister remoteport on ffff8ae14801e000 21320102adf7eeb8\\n  ? set_kthread_struct+0x40/0x40\\n qla2xxx [0000:12:00.1]-2110:3: remoteport_delete of ffff8ae14801e000 21320102adf7eeb8 completed.\\n  ? ret_from_fork+0x1f/0x40\\n qla2xxx [0000:12:00.1]-f086:3: qlt_free_session_done: waiting for sess ffff8ae14801e000 logout\\n\\nThe system was under memory stress where driver was not able to allocate an\\nSRB to carry out error recovery of cable pull.  The failure to flush causes\\nupper layer to start modifying scsi_cmnd.  When the system frees up some\\nmemory, the subsequent cable pull trigger another command flush. At this\\npoint the driver access a null pointer when attempting to DMA unmap the\\nSGL.\\n\\nAdd a check to make sure commands are flush back on session tear down to\\nprevent the null pointer access.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: scsi: qla2xxx: corrige el vaciado del comando al tirar del cable. Fallo del sistema debido a que el comando no pudo volver a vaciarse a la capa SCSI. ERROR: no se puede manejar la desreferencia del puntero NULL del kernel en 0000000000000000 PGD 0 P4D 0 Ups: 0000 [#1] SMP NOPTI CPU: 27 PID: 793455 Comm: kworker/u130:6 Kdump: cargado Contaminado: G OE ------ --- - - 4.18.0-372.9.1.el8.x86_64 #1 Nombre de hardware: HPE ProLiant DL360 Gen10/ProLiant DL360 Gen10, BIOS U32 03/09/2021 Cola de trabajo: nvme-wq nvme_fc_connect_ctrl_work [nvme_fc] RIP: 0010: __wake_up_common+0x4c/0x190 C\u00f3digo: 24 10 4d 85 c9 74 0a 41 f6 01 04 0f 85 9d 00 00 00 48 8b 43 08 48 83 c3 08 4c 8d 48 e8 49 8d 41 18 48 c3 0f 84 f0 00 00 00 \u0026lt; 49\u0026gt; 8b 41 18 89 54 24 08 31 ed 4c 8d 70 e8 45 8b 29 41 f6 c5 04 75 RSP: 0018:ffff95f3e0cb7cd0 EFLAGS: 00010086 RAX: 0000000000000000 RBX: ffff8b08d3b26328 RCX: 00000000000000000 RDX: 0000000000000001 RSI: 00000000000000003 RDI: ffff8b08d3b26320 RBP : 0000000000000001 R08: 0000000000000000 R09: ffffffffffffffe8 R10: 0000000000000000 R11: ffff95f3e0cb7a60 R12: ffff95f3e0cb7d20 R13: 0000003 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8b2fdf6c0000(0000) knlGS:0000000000000000 CS: 0 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000002f1e410002 CR4: 00000000007706e0 DR0: 00000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Seguimiento de llamadas: __wake_up_common_lock+0x7c/0xc0 qla_nvme_ls_req+ 0x355/0x4c0 [qla2xxx] qla2xxx [0000:12:00.1]-f084:3: qlt_free_session_done: se_sess 0000000000000000 / sess ffff8ae1407ca000 desde el puerto 21:32:00:02:ac:07:ee:b8 loop_id 0x02 s_id 01:02:00 cerrar sesi\u00f3n 1 mantener 0 els_logo 0 ? __nvme_fc_send_ls_req+0x260/0x380 [nvme_fc] qla2xxx [0000:12:00.1]-207d:3: FCPort 21:32:00:02:ac:07:ee:b8 el estado pas\u00f3 de EN L\u00cdNEA a PERDIDO - portid=010200. ? nvme_fc_send_ls_req.constprop.42+0x1a/0x45 [nvme_fc] qla2xxx [0000:12:00.1]-2109:3: qla2x00_schedule_rport_del 21320002ac07eeb8. informe ffff8ae598122000 roles 1 ? nvme_fc_connect_ctrl_work.cold.63+0x1e3/0xa7d [nvme_fc] qla2xxx [0000:12:00.1]-f084:3: qlt_free_session_done: se_sess 0000000000000000 / sess ffff8ae14801e000 desde el puerto 21: 32:01:02:ad:f7:ee:b8 loop_id 0x04 s_id 01:02:01 cerrar sesi\u00f3n 1 mantener 0 els_logo 0? __cambiar_a+0x10c/0x450 ? Process_one_work+0x1a7/0x360 qla2xxx [0000:12:00.1]-207d:3: FCPort 21:32:01:02:ad:f7:ee:b8 el estado pas\u00f3 de EN L\u00cdNEA a PERDIDO - portid=010201. ? hilo_trabajador+0x1ce/0x390? create_worker+0x1a0/0x1a0 qla2xxx [0000:12:00.1]-2109:3: qla2x00_schedule_rport_del 21320102adf7eeb8. informe ffff8ae3b2312800 roles 70 ? kthread+0x10a/0x120 qla2xxx [0000:12:00.1]-2112:3: qla_nvme_unregister_remote_port: cancelar el registro del puerto remoto en ffff8ae14801e000 21320102adf7eeb8? set_kthread_struct+0x40/0x40 qla2xxx [0000:12:00.1]-2110:3: Remoteport_delete de ffff8ae14801e000 21320102adf7eeb8 completado. ? ret_from_fork+0x1f/0x40 qla2xxx [0000:12:00.1]-f086:3: qlt_free_session_done: esperando sess ffff8ae14801e000 cerrar sesi\u00f3n El sistema estaba bajo estr\u00e9s de memoria y el controlador no pudo asignar un SRB para llevar a cabo la recuperaci\u00f3n de errores de extracci\u00f3n del cable. La falla al vaciar hace que la capa superior comience a modificar scsi_cmnd. Cuando el sistema libera algo de memoria, el siguiente tir\u00f3n del cable activa otro comando de descarga. En este punto, el controlador accede a un puntero nulo cuando intenta desasignar DMA el SGL. Agregue una verificaci\u00f3n para asegurarse de que los comandos se vuelvan a borrar al cerrar la sesi\u00f3n para evitar el acceso al puntero nulo.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/09c0ac18cac206ed1218b1fe6c1a0918e5ea9211\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/67b2d35853c2da25a8ca1c4190a5e96d3083c2ac\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8de1584ec4fe0ebea33c273036e7e0a05e65c81d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8f0d32004e3a572bb77e6c11c2797c87f8c9703d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a27d4d0e7de305def8a5098a614053be208d1aa1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a859f6a8f4234b8ef62862bf7a92f1af5f8cd47a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b73377124f56d2fec154737c2f8d2e839c237d5a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d7a68eee87b05d4e29419e6f151aef99314970a9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ec7587eef003cab15a13446d67c3adb88146a150\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/09c0ac18cac206ed1218b1fe6c1a0918e5ea9211\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/67b2d35853c2da25a8ca1c4190a5e96d3083c2ac\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/8de1584ec4fe0ebea33c273036e7e0a05e65c81d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/8f0d32004e3a572bb77e6c11c2797c87f8c9703d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/a27d4d0e7de305def8a5098a614053be208d1aa1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/a859f6a8f4234b8ef62862bf7a92f1af5f8cd47a\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/b73377124f56d2fec154737c2f8d2e839c237d5a\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/d7a68eee87b05d4e29419e6f151aef99314970a9\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/ec7587eef003cab15a13446d67c3adb88146a150\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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