CVE-2021-47419
published 2024-05-21CVE-2021-47419: In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_taprio: properly cancel timer from taprio_destroy() There is a comment in…
PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.23%
14.1th percentile
In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_taprio: properly cancel timer from taprio_destroy() There is a comment in qdisc_create() about us not calling ops->reset() in some cases. err_out4: /* * Any broken qdiscs that would require a ops->reset() here? * The qdisc was never in action so it shouldn't be necessary. */ As taprio sets a timer before actually receiving a packet, we need to cancel it from ops->destroy, just in case ops->reset has not been called. syzbot reported: ODEBUG: free active (active state 0) object type: hrtimer hint: advance_sched+0x0/0x9a0 arch/x86/include/asm/atomic64_64.h:22 WARNING: CPU: 0 PID: 8441 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505 Modules linked in: CPU: 0 PID: 8441 Comm: syz-executor813 Not tainted 5.14.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:505 Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd e0 d3 e3 89 4c 89 ee 48 c7 c7 e0 c7 e3 89 e8 5b 86 11 05 0b 83 05 85 03 92 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3 RSP: 0018:ffffc9000130f330 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: ffff88802baeb880 RSI: ffffffff815d87b5 RDI: fffff52000261e58 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815d25ee R11: 0000000000000000 R12: ffffffff898dd020 R13: ffffffff89e3ce20 R14: ffffffff81653630 R15: dffffc0000000000 FS: 0000000000f0d300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffb64b3e000 CR3: 0000000036557000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __debug_check_no_obj_freed lib/debugobjects.c:987 [inline] debug_check_no_obj_freed+0x301/
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.14.12-1 (bookworm) | linux 5.14.12-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 44d4775ca51805b376a8db5b34f650434a08e556 < 7a1c1af341041221b3acb9d7036cc2b43e0efa75 | 7a1c1af341041221b3acb9d7036cc2b43e0efa75 |
| linux | linux | >= 44d4775ca51805b376a8db5b34f650434a08e556 < a56d447f196fa9973c568f54c0d76d5391c3b0c0 | a56d447f196fa9973c568f54c0d76d5391c3b0c0 |
| linux | linux | >= 5.10.5 < 5.10.73 | 5.10.73 |
| linux | linux | >= 5.4.87 < 5.4.153 | 5.4.153 |
| linux | linux | >= a969a632cbe7165d448a5528806ad120c2599397 < 3ec73ffeef54596c32aff0e73fe60971b9c8b866 | 3ec73ffeef54596c32aff0e73fe60971b9c8b866 |
| linux | linux | >= c71c512f4a65267e6a18163f4df729c489a51035 < c951c08a5996365aecbc5f1a9bddec3905e1ddfc | c951c08a5996365aecbc5f1a9bddec3905e1ddfc |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.84-1 | 5.10.84-1 |
| linux | linux_kernel | >= 0 < 5.14.12-1 | 5.14.12-1 |
| linux | linux_kernel | >= 0 < 5.14.12-1 | 5.14.12-1 |
| linux | linux_kernel | >= 0 < 5.14.12-1 | 5.14.12-1 |
| linux | linux_kernel | >= 5.10.5 < 5.10.73 | 5.10.73 |
| linux | linux_kernel | >= 5.11 < 5.14.12 | 5.14.12 |
| linux | linux_kernel | >= 5.4.87 < 5.4.153 | 5.4.153 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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OSV
CVE-2021-47419: In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_taprio: properly cancel timer from taprio_destroy() There is a comm
osv·2024-05-21·CVSS 5.5
CVE-2021-47419 [MEDIUM] CVE-2021-47419: In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_taprio: properly cancel timer from taprio_destroy() There is a comm
In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_taprio: properly cancel timer from taprio_destroy() There is a comment in qdisc_create() about us not calling ops->reset() in some cases. err_out4: /* * Any broken qdiscs that would require a ops->reset() here? * The qdisc was never in action so it shouldn't be necessary. */ As taprio sets a timer before actually receiving a packet, we need to cancel it from ops->destroy, just in case ops->reset has not been called. syzbot reported: ODEBUG: free active (active state 0) object type: hrtimer hint: advance_sched+0x0/0x9a0 arch/x86/include/asm/atomic64_64.h:22 WARNING: CPU: 0 PID: 8441 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505 Modules linked in: CPU: 0 PID: 8441 Comm: syz-ex
GHSA
GHSA-h9p9-4f35-pxjm: In the Linux kernel, the following vulnerability has been resolved:
net/sched: sch_taprio: properly cancel timer from taprio_destroy()
There is a co
ghsa_unreviewed·2024-05-21
CVE-2021-47419 [MEDIUM] GHSA-h9p9-4f35-pxjm: In the Linux kernel, the following vulnerability has been resolved:
net/sched: sch_taprio: properly cancel timer from taprio_destroy()
There is a co
In the Linux kernel, the following vulnerability has been resolved:
net/sched: sch_taprio: properly cancel timer from taprio_destroy()
There is a comment in qdisc_create() about us not calling ops->reset()
in some cases.
err_out4:
/*
* Any broken qdiscs that would require a ops->reset() here?
* The qdisc was never in action so it shouldn't be necessary.
*/
As taprio sets a timer before actually receiving a packet, we need
to cancel it from ops->destroy, just in case ops->reset has not
been called.
syzbot reported:
ODEBUG: free active (active state 0) object type: hrtimer hint: advance_sched+0x0/0x9a0 arch/x86/include/asm/atomic64_64.h:22
WARNING: CPU: 0 PID: 8441 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Modules linked in:
CPU: 0 PID: 8441 Comm:
Red Hat
kernel: net/sched: sch_taprio: properly cancel timer from taprio_destroy()
vendor_redhat·2024-05-21·CVSS 5.5
CVE-2021-47419 [MEDIUM] CWE-833 kernel: net/sched: sch_taprio: properly cancel timer from taprio_destroy()
kernel: net/sched: sch_taprio: properly cancel timer from taprio_destroy()
In the Linux kernel, the following vulnerability has been resolved:
net/sched: sch_taprio: properly cancel timer from taprio_destroy()
There is a comment in qdisc_create() about us not calling ops->reset()
in some cases.
err_out4:
/*
* Any broken qdiscs that would require a ops->reset() here?
* The qdisc was never in action so it shouldn't be necessary.
*/
As taprio sets a timer before actually receiving a packet, we need
to cancel it from ops->destroy, just in case ops->reset has not
been called.
syzbot reported:
ODEBUG: free active (active state 0) object type: hrtimer hint: advance_sched+0x0/0x9a0 arch/x86/include/asm/atomic64_64.h:22
WARNING: CPU: 0 PID: 8441 at lib/debugobjects.c:505 debug_print_object+0x16e/0
Debian
CVE-2021-47419: linux - In the Linux kernel, the following vulnerability has been resolved: net/sched: ...
vendor_debian·2021·CVSS 5.5
CVE-2021-47419 [MEDIUM] CVE-2021-47419: linux - In the Linux kernel, the following vulnerability has been resolved: net/sched: ...
In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_taprio: properly cancel timer from taprio_destroy() There is a comment in qdisc_create() about us not calling ops->reset() in some cases. err_out4: /* * Any broken qdiscs that would require a ops->reset() here? * The qdisc was never in action so it shouldn't be necessary. */ As taprio sets a timer before actually receiving a packet, we need to cancel it from ops->destroy, just in case ops->reset has not been called. syzbot reported: ODEBUG: free active (active state 0) object type: hrtimer hint: advance_sched+0x0/0x9a0 arch/x86/include/asm/atomic64_64.h:22 WARNING: CPU: 0 PID: 8441 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505 Modules linked in: CPU: 0 PID: 8441 Comm: syz-ex
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/3ec73ffeef54596c32aff0e73fe60971b9c8b866https://git.kernel.org/stable/c/7a1c1af341041221b3acb9d7036cc2b43e0efa75https://git.kernel.org/stable/c/a56d447f196fa9973c568f54c0d76d5391c3b0c0https://git.kernel.org/stable/c/c951c08a5996365aecbc5f1a9bddec3905e1ddfchttps://git.kernel.org/stable/c/3ec73ffeef54596c32aff0e73fe60971b9c8b866https://git.kernel.org/stable/c/7a1c1af341041221b3acb9d7036cc2b43e0efa75https://git.kernel.org/stable/c/a56d447f196fa9973c568f54c0d76d5391c3b0c0https://git.kernel.org/stable/c/c951c08a5996365aecbc5f1a9bddec3905e1ddfc
2024-05-21
Published